One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,6)(3,7,8,5)(9,10)(11,15)(12,14)(13,16)(17,18,20,21)(19,23,24,22)(9,11,13,12)(10,14,16,15)(18,21)(22,23)(26,29)(30,32)(1,2)(3,5)(4,6)(7,8)(9,11,13,12)(10,15,16,14)(17,18)(19,22)(20,21)(23,24)(25,26,28,29)(27,30,31,32)(1,2)(3,5)(4,6)(7,8)(9,12,13,11)(10,15,16,14)(17,19,20,24)(18,22,21,23)(1,3,4,8)(2,5,6,7)(9,10)(11,15)(12,14)(13,16)(17,18)(19,23)(20,21)(22,24)(25,27,28,31)(26,30,29,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.